Electronics Forum | Wed May 14 17:56:19 EDT 2003 | bradlanger
Does anybody have any advice on how to get a decent profile out of a 4 zone IR oven? Should top heat and bottom heat be proportionate? Are there any tricks to use?
Electronics Forum | Thu May 15 15:42:33 EDT 2003 | davef
Unless you have a reason, set your top and bottom to the same temperature. Tip: Don't run dry cleaners bags through the oven. Tell us about: * Paste you intend to use. * Specifics of your oven, including length of each of the heating and cooling zo
Electronics Forum | Mon May 19 02:59:04 EDT 2003 | emeto
Hi, I can give you a few steps. 1. The solder paste. Take the profile that manifacturer gives for the paste. 2. Use termocouple to measure the tempereture. Put PCB and measure the temperature in equal terms. 3. Compare your profile to manifacturers
Electronics Forum | Tue Feb 11 12:59:06 EST 2020 | astarotf
Hi Steve Thomas Effectively by IPC-610 standard specifies in the "content 8.2.13 Quad Flat Pack Plastic Package - Without Terminals (PQFN), Table 8-13, page 8-84" which depending on the class of manufacture notes 2-5 of the table, which in theory do
Electronics Forum | Sun Feb 23 21:19:08 EST 2020 | sssamw
Yes, this is for tin-lead profile. And for the QFN pins which has copper exposed that not required and not possible to have fillet on side surface as in IPC, see 8.3.13, in IPC-A-610-G
Electronics Forum | Wed Feb 12 14:38:18 EST 2020 | SMTA-Alex
There are several areas you can check. Your profile is very fast. You reach the peak at around 3 minute mark. That's not enough time for the fillet to form. Try to slow down your belt speed to around 90-95, to give it more time. Also, your temperatur
Electronics Forum | Tue Jan 13 21:00:15 EST 2004 | davef
This sounds like something the saleman of your new Vitronics oven should be happy to help you sort through. ECD [and probably other profiler supplers] provide software for playing with [optimizing?] recipes. In it, they allow you to select from a v
Electronics Forum | Thu Apr 26 08:29:37 EDT 2007 | pavel_murtishev
Good afternoon, We develop reflow profile ones and control it daily or when recipe changes after that. Modern reflow ovens are usually very stable. This means that your zone temperature set points won�t deviate from initial ones. You can calculate d
Electronics Forum | Wed Oct 27 11:38:44 EDT 2004 | marc
This has always been a big debate on what is better. Few things to consider before getting into number of zones. What is the throughput and cooling requirements? Throughput is a direct relation to length of heating zone. Longer heating length
Electronics Forum | Tue Oct 26 10:49:00 EDT 2004 | Simon UK
Hi, > > I'm planning to get a new oven. I wanna > know the advantages and disadvantages of each > oven type over each other. I'm being told to go > for an 8 zone oven. > > thanks for your > help. > > regards, Depends really if you want a dua
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